they are on DealFind this weekend and I just bought one.
http://www.dealfind.com/minneapolis-st- ... rryacademy
came across this thread when I was searching the company name on google to check the legitimacy, and originally was worried but spoke to the owner (Chris I think?) on the phone before buying it to make sure it was all good. apparently the amount sold doesnt interfere with the class space as since you book your time online for the course, the course automatically removes itself from the options when its full, so all of the courses listed on their site this can be redeemed on. I guess lots of people have been buying these for gifts for their wives and such so people aren't redeeming them too quickly.
I dunno, seems pretty legit as all the other actual courses I could actually find prices for online were more expensive anyways.